| Indirect determination of dichlorodiphenyltrichloroethane (DDT) after dechlorination with magnesium/palladium bimetallic particles and potentiometric measurements. | |
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MedLine Citation:
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PMID: 20419289 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Determination of chlorine ions of pesticides was performed after dechlorination reaction using a palladium/magnesium system. Chlorine ions were quantified by potentiometry with ion-specific electrode. Rates of dechlorination of 100 microg of DDT as a function of reaction time and percent (wt/wt) of palladium deposited on the magnesium particles were determined. The best reaction conditions to DDT dechlorination were achieved with an acetone/water (1:1) solution and DDT reaction with a 0.27% (wt/wt) palladium/magnesium bimetallic system at room temperature for 10 min. The detection limit was of 0.24 microg/mL. This low cost method showed an efficiency of 92% in determining chlorine ions derived from DDT, it is fast, requiring no specialized laboratory equipment. |
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Authors:
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Maria Amélia A Estrela; Jurandir R SouzaDe; Sílvia C L Dias; José G Dórea |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-04-24 |
Journal Detail:
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Title: Bulletin of environmental contamination and toxicology Volume: 84 ISSN: 1432-0800 ISO Abbreviation: Bull Environ Contam Toxicol Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-05-21 Completed Date: 2010-08-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0046021 Medline TA: Bull Environ Contam Toxicol Country: United States |
Other Details:
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Languages: eng Pagination: 574-6 Citation Subset: IM |
Affiliation:
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Laboratório de Química Analítica e Ambiental, Instituto de Química, Universidade de Brasília, P.O. 4478, Brasília, DF 70.904-970, Brazil. amelia@unb.br |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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DDT
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analysis*,
chemistry Environmental Monitoring Environmental Pollution / analysis* Environmental Remediation / methods Halogenation Limit of Detection Magnesium / chemistry* Palladium / chemistry* Pesticides / chemistry* Potentiometry |
| Chemical | |
Reg. No./Substance:
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0/Pesticides; 50-29-3/DDT; 7439-95-4/Magnesium; 7440-05-3/Palladium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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